Quality Park Redi Seal Security Tinted Window Envelope, 4 1 2" x 9 1 2", Woven White, 500 Box Lanterns The FD1202 pressure sealer provides 635 The FD1202 pressure sealer provides a user friendly solution for processing one piece pressure sensitive mailers to eliminate the need for envelopes These Staples white #10 envelopes come in a 500 count pack These Quality Park Redi Seal envelopes are perfectly sized to hold medical claim forms and other related documents Brand Name: Quality Park Color Family: White Envelope Closure: Self Seal Envelope Flap Style: Rectangular Envelope Material: Paper Envelope Pack Size: 500 Per Pack Envelope Paper Finish: Wove Envelope Size: 4 1 2" x 9 1 2" Envelope Type: Window Envelope Window Location: Single Right Height in Inches: 4